“Create reliable, interpretable, and steerable AI systems.”
Seed capital for founders doing their life’s work.
An $80M seed fund in New York. The way in isn’t a deck — share your writing to start.
Every one of these
began as writing.
“Build a next-generation car service.”
“Build America’s first mobile bank.”
“Build industrial sensor systems that simply work.”
“Build a single system for employee information.”
“Build state-of-the-art, open-source AI models for European industry.”
“Power content in any language.”
“Bring computing power to non-programmers.”
“Build collaborative design software.”
“Develop graphics workstations for the OEM CAD/CAM marketplace.”
Five things we do.
Nothing else.
Twenty-two founders doing their life’s work.
See what each company is building
Ten years at Index. Then his own life’s work.
Damir Becirovic spent a decade at Index Ventures — Partner, co-founder of its seed fund — before closing Relentless Fund I in May 2026: $80M of concentrated seed capital, raised to lead rounds with deep belief. Small on purpose. Four partners, one fund, consensus decisions.
An $80M debut, on the record.
Are you ready to begin your life’s work?
Raise up to $10M in 10 days · Share writing to start · Confidentiality guaranteed
Share your writing →Write it. Do it.